Datasheet PCD3310AT, PCD3310P, PCD3310T, PCD3310AP Datasheet (Philips)

INTEGRATED CIRCUITS

DATA SH EET

PCD3310; PCD3310A

Pulse and DTMF diallers with redial

Product specification
Supersedes data of 1996 May 06
File under Integrated Circuits, IC03

1996 Nov 21

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

CONTENTS

1 FEATURES
2 GENERAL DESCRIPTION
3 QUICK REFERENCE DATA
4 ORDERING INFORMATION
5 BLOCK DIAGRAM
6 PINNING
7 FUNCTIONAL DESCRIPTION

7.1 Power supply (VDD and VSS)

7.2 Clock oscillator (OSCI and OSCO)

7.3 Chip enable (CE)

7.4 Mode selection (PD/DTMF)

7.4.1 Pulse mode

7.4.2 DTMF mode

7.4.3 Mixed mode

7.5 Keyboard inputs/outputs

7.6 Flash duration control (FLD)

7.7 TONE output (DTMF mode)

7.8 Dial pulse and Flash output (DP/FLO)

7.9 Mute output (M1)

7.10 Mute output (M1)

7.11 Muting output (M2)
8 DIALLING PROCEDURES

8.1 Dialling

8.2 Redialling

8.3 Notepad
9 HANDLING
10 LIMITING VALUES
11 CHARACTERISTICS
12 TIMING CHARACTERISTICS
13 APPLICATION INFORMATION
14 PACKAGE OUTLINES
15 SOLDERING

15.1 Introduction

15.2 DIP

15.2.1 Soldering by dipping or by wave

15.2.2 Repairing soldered joints

15.3 SO

15.3.1 Reflow soldering

15.3.2 Wave soldering

15.3.3 Repairing soldered joints
16 DEFINITIONS
17 LIFE SUPPORT APPLICATIONS

1996 Nov 21 2

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

1 FEATURES

• Pulse, DTMF and ‘mixed mode’ dialling

• Mixed mode dialling: start with pulse dial, end with

DTMF dial (e.g. for control of DTMF user equipment via
a pulse network)

• 23-digit memory stores last number dialled, or number
noted during conversation (notepad)

• Redial of both PABX and external calls

• Supports 16 dial keys: 0 to 9, ∗, # A, B, C, and D

• Supports 4 function keys:

– Program (P) used to input notepad numbers
– Flash (FL) allows re-dialling without on-hook
– Redial (R) recalls and redialls stored number
– Change from pulse dial to DTMF dial in

mixed mode (>)

• DTMF timing:
– for manual dialling, maximum duration burst/pause

intervals are user-determined, but at least minimum
duration burst/pause intervals are ensured

– for redial, minimum duration burst/pause intervals are

used

• On-chip voltage reference for supply and temperature
independent tone output

• On-chip filtering for low output distortion
(CEPT compatible)

• On-chip oscillator uses low-cost 3.58 MHz (TV colour
burst) crystal or piezo resonator

• Uses standard single-contact or double-contact
(common left open) keyboard

• Keyboard entries fully debounced

• Flash (register recall) output.

2 GENERAL DESCRIPTION

The PCD3310 and PCD3310A are single-chip silicon gate
CMOS integrated circuits. They are dual-standard diallers
for pulse or dual tone multi-frequency (DTMF) dialling, with
on-chip oscillators suitable for use with 3.58 MHz crystals.

Input data is derived from any standard matrix keyboard
for dialling in either the pulse or DTMF mode.

Numbers up to 23 digits can be retained in RAM for
dialling/redialling.

3 QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

DD

V

stb

I

DD(stb)

I

DD(conv)

I

DD(pulse)

I

DD(DTMF)

V

HG(RMS)

operating supply voltage 2.5 − 6.0 V
standby supply voltage 1.8 − 6.0 V
standby current (on hook) V

= 1.8 V − 1.4 4 µA

stb

operating current in conversation mode VDD=3V −−150 µA
operating current in pulse dialling mode VDD=3V −−200 µA
operating current in DTMF dialling mode VDD=3V − 0.6 0.9 mA
DTMF output voltage level for HIGH group

− 192 − mV

(RMS value)

V

LG(RMS)

DTMF output voltage level for LOW group

− 150 − mV

(RMS value)

G

v

voltage gain (pre-emphasis) of group − 2.1 − dB
THD total harmonic distortion −−25 − dB
T

amb

operating ambient temperature −25 − +70 °C

1996 Nov 21 3

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

4 ORDERING INFORMATION
Table 1 Package information

TYPE

NUMBER

PCD3310P DIP20 plastic dual in-line package; 20 leads (300 mil) SOT146-1
PCD3310AP DIP20 plastic dual in-line package; 20 leads (300 mil) SOT146-1
PCD3310T SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1
PCD3310AT SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1

Table 2 Functional options

TYPE

NUMBER

PCD3310P 67, 33 ms 2 : 1
PCD3310T 67, 33 ms 2 : 1
PCD3310AP 60, 40 ms 3 : 2
PCD3310AT 60, 40 ms 3 : 2

Notes

1. Pulse frequency 10 Hz, inter-digit pause (t

2. Note that the PCD3310P; 10T and the PCD3310AP; 10AT differ only in the break/make ratio in pulse dialling.
The break/make times equate to mark-to-space ratios of 2 : 1 and 3 : 2 respectively.

NAME DESCRIPTION VERSION

PULSE DIAL; BREAK/MAKE TIME (see notes 1 and 2)

) = 840 ms.

id

PACKAGE

MARK-TO-SPACE

RATIO

1996 Nov 21 4

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

5 BLOCK DIAGRAM

DD

V

(21)

DP/FLO

16

PD

(2)

PD/DTMF

2

DTMF

19

(27)

DTMF LOW GROUP

COUNTER/CONTROLLER



DAC

+

(5)

LOW

4

VSSTONE

3

(3)

OSCILLATOR

COUNTER

TIME BASE

RESET DELAY

(28)

(1)

MGE490

20

OSCOOSCI

1

handbook, full pagewidth

CODE CONVERTER

PD AND FLASH LOGIC

TIMING CONTROLLER

PCD3310 FAMILY

OUTPUT

DAC

HIGH

DTMF HIGH GROUP

COUNTER/CONTROLLER

V

VOLTAGE

REFERENCE

POINTER

COUNTER

CONTROLLER

ADDRESS

DECODING

MAIN

REGISTER

ref

READ/

WRITE

OUTPUT

ON

RESET

POWER

INPUT

REGISTER

TEMPORARY

LOGIC

CONTROL

KEYPAD

INTERFACE/LOGIC

(26)

(24)
(20)
(8)

(19)

(17)

(16)

(15)

(14)

(13)

(12)

(10)

(9)

(22)
18

(23)
17

15
5

14

13

12

11

10

9

8

7

6

M2
CE

M1

M1

FLD

CF/DMODE/FS

COL 4

COL 3

COL 2

COL 1

ROW 1

ROW 2

ROW 3

ROW 4

ROW 5

Fig.1 Block diagram.

1996 Nov 21 5

The pin numbers given in parenthesis refer to the PCD3310T.

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

6 PINNING

PINS

SYMBOL

OSCI 1 1 I oscillator input
PD/DTMF 2 2 I select pin; pulse or DTMF dialling input
TONE 3 3 O single or dual tone frequency output
n.c. − 4 − not connected
V

SS

n.c. − 6 − not connected
n.c. − 7 − not connected
FLD 5 8 I/O flash duration control input/output
ROW 5 6 9 I/O scanning row 5 keyboard input/output
ROW 4 7 10 I/O scanning row 4 keyboard input/output
n.c. − 11 − not connected
ROW 3 8 12 I/O scanning row 3 keyboard input/output
ROW 2 9 13 I/O scanning row 2 keyboard input/output
ROW 1 10 14 I/O scanning row 1 keyboard input/output
COL 1 11 15 I sense column 1 keyboard input (with internal pull-up resistor)
COL 2 12 16 I sense column 2 keyboard input (with internal pull-up resistor)
COL 3 13 17 I sense column 3 keyboard input (with internal pull-up resistor)
n.c. − 18 − not connected
COL 4 14 19 I sense column 4 keyboard input (with internal pull-up resistor)
CF/DMODE/FS 15 20 O confidence tone/dialling mode/frequency select outputs
DP/FLO 16 21 O dialling pulse and flash output
M2 − 22 O muting output 2
M1 − 23 O muting output 1 (active LOW)
M1 17 24 O muting output 1
n.c. − 25 − not connected
CE 18 26 I chip enable input
V

DD

OSCO 20 28 O oscillator output

PCD3310P

PCD3310AP

4 5 P negative supply

19 27 P positive supply voltage

PCD3310T

PCD3310AT

TYPE DESCRIPTION

1996 Nov 21 6

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

handbook, halfpage

PD/DTMF

Fig.2 Pin configuration (DIP20 package).

OSCI

TONE

V

SS

FLD
ROW 5
ROW 4
ROW 3
ROW 2
ROW 1

1
2
3
4
5

PCD3310P

PCD3310AP

6
7
8
9

10

MGE489

OSCO

20
19

V

DD

18

CE

17

M1

16

DP/FLO
CF/DMODE/FS

15

COL 4

14

COL 3

13

COL 2

12

COL 1

11

handbook, halfpage

PD/DTMF

Fig.3 Pin configuration (SO28 package).

OSCI

TONE

n.c.

V

SS

n.c.
n.c.

FLD
ROW 5
ROW 4

n.c.
ROW 3
ROW 2
ROW 1

1
2
3
4
5
6
7

PCD3310T

PCD3310AT

8

9
10
11
12
13

MGE488

OSCO

28

V

27

DD

CE

26

n.c.

25

M1

24
23

M1
M2

22
21

DP/FLO
CF/DMODE/FS

20

COL 4

19

n.c.

18

COL 3

17

COL 2

16
1514

COL 1

7 FUNCTIONAL DESCRIPTION

References to ‘the device’ apply to both the PCD3310 and
the PCD3310A.

7.1 Power supply (V

The positive supply of the device (V

and VSS)

DD

) must meet the

DD

voltage requirements as indicated in Chapter 11.
To avoid undefined states of the device at power-on, an
internal reset circuit clears the control logic and counters.
If VDD drops below the minimum standby supply voltage of

1.8 V the power-on reset circuit inhibits redialling after
hook-off. The power-on reset signal has the highest
priority; it blocks and resets the device without delay
regardless of the state of chip enable input (CE).

7.2 Clock oscillator (OSCI and OSCO)

The timebase for the device for both pulse and DTMF
dialling is a crystal controlled on-chip oscillator which is
completed by connecting a 3.58 MHz crystal or ceramic
resonator between the OSCI and OSCO pins.
Recommended resonator type:

• 3.58 MHz PXE - Murata; CSA 3.58MG310VA.

7.3 Chip enable (CE)

The CE input enables the device and is used to initialize
the device. When CE is LOW it provides the static standby
condition. In this state the clock oscillator is disabled, all
registers and logic are reset with the exception of the redial
registers, Read Address Counter (RAC), Write Address
Counter (WAC) and Temporary Write Address Counter
(TWAC). The RAC points to the first digit of the last
number dialled, the WAC and TWAC point to the last
entered digits in the main and temporary registers
(see Fig.6). The keyboard input is inhibited, but data
previously entered is saved in the redial registers provided

is higher than V

V

DD

. The current drawn is I

stb

(standby

stb

current) and serves to retain data in the redial registers
during hook-on.

When CE is HIGH it activates the clock oscillator and the
device changes from static standby condition to the
conversation mode. The current consumption is I

DD(conv)

until the first digit is entered from the keyboard. Then a
dialling or redialling operation starts. The operating current
is I

DD(pulse)

if in the pulse dialling mode, or I

DD(DTMF)

if the

DTMF dialling mode is selected.

1996 Nov 21 7

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

If the CE input is taken to a LOW level for longer than time
period trd (see Figs 11 and 12 and Chapter 12) an internal
reset pulse will be generated at the end of the trd period.
The system changes to the static standby state. Short CE
pulses of < trd will not affect the operation of the device and
reset pulses are not produced.

7.4 Mode selection (

7.4.1 P

ULSE MODE

PD/DTMF)

If PD/DTMF = VSS the pulse mode is selected. Entries of
non-numeric keys are neglected, they are neither stored in
the redial register nor transmitted.

7.4.2 DTMF

MODE

If PD/DTMF = VDD the dual tone multi-frequency dialling
mode is selected. Each non-function key activated
corresponds to a combination of two tones, one of four
LOW and one of four HIGH frequencies, corresponding to
the key’s row and column in the keyboard matrix.
See Fig.4 and Table 3. The frequencies are transmitted
with a constant amplitude, regardless of power supply
variations. Harmonic content is filtered out thus meeting
the CEPT recommendations.

entries are debounced on both the leading and trailing
edges for approximately time period t

as shown in

e

Figs 11, 12, 13 and 14. Each entry is tested for validity.
When a key is depressed, keyboard scanning starts and
only returns to the sense mode after release of that key.

handbook, halfpage

54321 1234

MGE491

ROWS

COLUMNS

123
45
7

∗

PFLR

6
9

8

#

0

KEYBOARD

A
B
C
D

>

The transmission time is calibrated for redial. In manual
operation the duration of bursts and pauses is the actual
key depression time, but not less than the minimum
transmission time (tt) or minimum pause time (tp).

7.4.3 M

IXED MODE

When the PD/DTMF pin is open-circuit the mixed mode is
selected. After activation of CE or FL (Flash) the device
starts as a pulse dialler and remains in this state until a
non-numeric dial key (A, B, C, D,∗, #) or the function key >
is activated. Pressing a non-numeric dial key causes the
corresponding DTMF tones to be output, and any
subsequent dialling to be in DTMF mode. Pressing >
causes no output tones, but any subsequent dialling is in
DTMF mode. The > key should be used if the first DTMF
output required is numeric. The device remains in DTMF
dial mode until FL is activated or after a static standby
condition when CE is re-activated.

A connection between the PD/DTMF pin and VDD also
initiates DTMF dialling. Chip enable, FL or a connection of
PD/DTMF pin to VSS sets the device back to pulse dialling.

7.5 Keyboard inputs/outputs

Fig.4 Keyboard organization.

ROW 5 of the keyboard contains the following function
keys:

• P = memory clear and programming (notepad)

• FL = flash or register recall

• R = redial

• > = change of dial mode from pulse to DTMF in mixed

dialling mode.

In the pulse dialling mode the valid keys are the
10 numeric dial keys (0 to 9). The non-numeric dial keys
(A, B, C, D, ∗, #) have no effect on the dialling or the redial
storage. Valid function keys are P, R and FL.

In the DTMF mode all dial keys are valid. They are
transmitted as a dual tone combination and at the same
time stored in the redial register. Valid function keys are P,
FL and R.

In the mixed mode all key entries are valid and executed
accordingly.

The sense column inputs COL 1 to COL 4 and the
scanning row outputs ROW 1 to ROW 5 of the device are
connected to the keyboard as shown in Fig.4. All keyboard

1996 Nov 21 8

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

7.6 Flash duration control (FLD)

Flash (or register recall) is activated by the FL key and can
be used in DTMF and pulse dialling modes.

The FL key has the same effect as placing the telephone
‘on-hook’ for a calibrated time. Pressing the FL key will
produce a timed line-break of 100 ms (min.) at the DP/FLO
output. During the conversation mode pressing FL also
acts as a chip enable. The flash pulse duration (tFL) is
calibrated and can be prolonged with an external resistor
and capacitor connected to the FLD input/output (see
Fig.5). The flash pulse resets the Read Address Counter
(RAC) to the address of the first entered digit of the last
number dialled. Subsequent redial is possible (see Fig.9).
The counter of the reset delay time is held for a period of

.

t

FL

7.7 TONE output (DTMF mode)

The single and dual tones which are provided at the TONE
output are filtered by an on-chip switched capacitor filter,
followed by an on-chip active RC low-pass filter. Hence,
the total harmonic distortion of the DTMF tones meets the
CEPT recommendations. The tone output has the
following states:

• tone OFF; 3-state

• tone ON; the associated frequencies are superimposed

1

on a DC level of

⁄2VDD.

When the DTMF mode is selected output tones are timed
in manual dialling with a minimum duration of bursts and
pauses, and in redial with a calibrated timing. Single tones
may be generated for test purposes (CE = HIGH). Each
row and column has one corresponding frequency.
High group frequencies are generated by connecting the
column to V

and LOW group frequencies are generated

SS

by forcing the row to VDD. The single tone frequency will be
transmitted during activation time, but it is neither
calibrated nor stored.

An on-chip reference voltage provides output tone levels
independent of the supply voltage. Table 3 shows the
frequency tolerance of the output tones for DTMF
signalling.

dbook, full pagewidth

(a) Flash duration control circuit.
(b) Flash pulse timing. t

FLRC

≈ R × C.

60
nA

FLD

(a)

R

FLO

C

Fig.5 Flash pulse duration setting.

1996 Nov 21 9

(b)

t

FLRC

MGE492

t

FL

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

Table 3 Frequency tolerance of the output tones for DTMF signalling; f

ROW/COLUMN

STANDARD

FREQUENCY (Hz)

TONE OUTPUT

FREQUENCY (Hz)

ROW 1 697 697.90 +0.13 +0.90
ROW 2 770 770.46 +0.06 +0.46
ROW 3 852 850.45 −0.18 −1.55
ROW 4 941 943.23 +0.24 +2.23

COL 1 1209 1206.45 −0.21 −2.55
COL 2 1336 1341.66 +0.42 +5.66
COL 3 1477 1482.21 +0.35 +5.21
COL 4 1633 1638.24 +0.32 +5.25

7.8 Dial pulse and Flash output (DP/FLO)

This is a combined output which provides control signals
for timing in pulse dialling or for a calibrated line break
(flash or register recall) in both dialling modes.

7.9 Mute output (M1)

The MUTE output can be used to disable the microphone
during dialling.

During pulse dialling the mute output becomes active
HIGH for the period of the inter-digit pause, break time and
make time. It remains at this level until the last digit is
pulsed out.

During DTMF dialling the mute output becomes active
HIGH for the period of tone transmission and remains at
this level until the end of hold-over time. It is also active
HIGH during flash and flash hold-over time.

7.10 Mute output (

M1)

Inverted output of M1. In the PCD3310P it is only available
as a bonding option of M1.

7.11 Muting output (M2)

Active HIGH output during actual dialling; i.e. during break
or make time in pulse dialling, or during tone ON/OFF in
DTMF dialling. It is an open drain p-channel output.

valid digit, the Temporary Write Address Counter (TWAC)
will be set to the first address of the temporary register,
and the decoded digit will be stored in the temporary
register at that address. The TWAC is then incremented to
the next address. The first 5 valid digits will be decoded
and stored in the temporary register in this way, and have
no effect on the main register and its associated Write
Address Counter (WAC). After the sixth valid digit is
entered, the TWAC indicates an overflow condition.
The data from the temporary register will be copied into the
5 least significant places of the main register and the
TWAC into the WAC. The sixth digit, and all subsequent
digits will be stored in the main register (a total of not more
than 23). If more than 23 digits are entered redial will be
inhibited. If not more than 5 digits are entered only the
temporary register and the associated TWAC are affected.

All entries are debounced on both the leading and trailing
edges for at least time period t
13 and 14.

Each entry is tested for validity before being stored in the
redial registers.

• For DTMF dialling all dial keys are valid

• For pulse dialling only numeric dial keys are valid.

Simultaneous to their acceptance and corresponding to
the selected mode (pulse, DTMF or mixed), the entries are
transmitted as pulse-trains or as DTMF frequencies in
accordance with PTT requirements. Non-numeric dial key

8 DIALLING PROCEDURES (see Figs 7, 8 and 9)

entries are neglected during pulse dialling; they are neither
stored nor transmitted.

8.1 Dialling

= 3.579545 MHz

xtal

FREQUENCY DEVIATION

%Hz

as shown in Figs 11, 12,

e

After CE has risen to V

the oscillator starts running and

DD

the Read Address Counter (RAC) is set to the first address
of both the main and temporary redial registers, ready to
redial any stored number (see Fig.6). By dialling the first

1996 Nov 21 10

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

8.2 Redialling

After CE has risen to VDD the oscillator starts running.
The address of the first digit in the redial register is stored
in the RAC, and the device is in the conversation mode.
If ‘R’ is the first keyboard entry the device starts redialling
the contents of the temporary register. If the overflow flag
of the TWAC was set in the previous dialling, the redialling
continues in the main register.

Because access to an external line from a PABX usually
involves dialling an access code and waiting for an access
tone, a ‘one-press’ redial may fail due to insufficient delay
between the access code and the external number.
For this reason, the access code should be redialled. If the
access code (up to 4 digits) matches the first part of the
stored number, then pressing R after the access tone is
obtained will cause the rest of the number to be redialled
(see Fig.7, PABX).

Timing in the DTMF mode is calibrated for both tone bursts
and pauses.

In mixed mode only the first part entered (the pulse dialled
part of the stored number) can be redialled.

During redial keyboard entries (function or non-function)
are not accepted until the device returns to the
conversation mode after completion of redialling. No redial
activity takes place if one of the following events occur:

• Power-on reset

• Memory clear (‘P’ without subsequent data entry)

• Memory overflow (more than 23 valid data entries).

8.3 Notepad

The redial register can also be used as a notepad. In the
conversation mode a number with up to 23 digits can be
entered and stored for redialling. By activating the program
key (P) the WAC and TWAC pointers are reset. This acts
like a memory clear (redial is inhibited). Afterwards, by
entering and storing any digits, redialling will be possible
after flash or hook-on and hook-off (see Fig.9).

During notepad programming the numbers entered will not
be transmitted nor is the mute active, only the confidence
tone is generated.

handbook, full pagewidth

write address counter (WAC)

read address counter (RAC)

addressed

through pointers

WAC or RAC

23

6

5
4
3

2
1

MAIN REGISTER

ADDRESS COUNTER

addressed

through pointers

TWAC or RAC

Fig.6 Program memory map.

5
4
3
2
1

TEMPORARY REGISTER

TEMPORARY WRITE

ADDRESS COUNTER (TWAC)

MGE493

1996 Nov 21 11

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

handbook, full pagewidth

PUBLIC EXCHANGE

PABX


DIAL external number

DIAL

OFF-HOOK

key-in
≤23 digits
462 75 30

ON-HOOK

OFF-HOOK OFF-HOOK OFF-HOOK

key-in

ACCESS DIGIT(S)

0

≤4 digits

REDIAL

OFF-HOOK

key-in R

462 75 30

ON-HOOK

REDIAL external number (1)

key-in

same previous

ACCESS DIGIT(S)

0

conversation 

mode

standby 

mode

pulse or
tone out

if internal number ≤5 digits

DIAL internal number

key-in

internal number

≤5 digits

12345

wait for

access tone

key-in

external number

462 75 30

ON-HOOK

(1) If [access digit(s) + external number] ≤23 digits.

wait for

access tone

key-in R

external number

462 75 30

ON-HOOK

Fig.7 Pulse or DTMF dialling mode.

1996 Nov 21 12

ON-HOOK

REDIAL internal number

OFF-HOOK

key-in R

internal number

12345

ON-HOOK

MGE494

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

handbook, full pagewidth



pulse dialling

DTMF dialling

DIAL

OFF-HOOK

key-in

462 75 30

(or any voice indication)

* 1 2 3 4 5 6 7

8 9 A B C D

ON-HOOK

REDIAL

OFF-HOOK

#

set in pulse dialling

pulse output

wait for signal

automatic switch to DTMF or manual by

TONE-output

>

pulse dialling

key-in R

462 75 30

if total

(PD + DTMF)

≤23 digits

ON-HOOK

MGE495

Fig.8 Pulse/DTMF and mixed mode dialling.

1996 Nov 21 13

pulse output

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

handbook, full pagewidth

NOTEPAD PROGRAM

NOTEPAD REDIAL

OFF-HOOK

key-in

462 75 30

ON-HOOK

MEMORY CLEAR

OFF-HOOK

key-in P

key-in
355 44 99
≤23 digits

no dialling - no muting

OFF-HOOK

OFF-HOOK

key-in R

355 44 99

ON-HOOK

FLASH

OFF-HOOK

key-in

462 75 30

key-in P

ON-HOOK

key-in R

Fig.9 Notepad, memory clear, flash; independent of dialling mode.

1996 Nov 21 14

no 
redialling

key-in

ACCESS DIGIT(S)

wait for

access tone

key-in

external number

462 75 30

key-in FL

wait for

access tone

key-in

internal number

12345

0

REDIAL
(see PABX
procedure)

MGE496

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

9 HANDLING

Inputs and outputs are protected against electrostatic discharge in normal handling. However, it is good practice to take
normal precautions appropriate to handling MOS devices (see

devices”

).

10 LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER MIN. MAX. UNIT

V

DD

I

DD

I

I

I

O

V

I

P

tot

P

o

T

stg

T

amb

supply voltage −0.8 +8.0 V
supply current − 50 mA
DC input current −10 +10 mA
DC output current −10 +10 mA
all input voltages −0.8 VDD+ 0.8 V
total power dissipation − 300 mW
power dissipation per output − 50 mW
storage temperature range −65 +150 °C
operating ambient temperature −25 +70 °C

“Data Handbook ICO3, Section: General, Handling MOS

11 CHARACTERISTICS

V

=3V; VSS=0V; f

DD

= 3.579545 MHz; T

osc

= −25 to +70 °C; unless otherwise specified.

amb

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

DD

V

stb

I

DD(conv)

operating supply voltage 2.5 − 6.0 V
standby supply voltage 1.8 − 6.0 V
operating supply current in conversation

oscillator ON −−150 µA

mode

I

DD(pulse)

operating supply current in pulse dialling

−−200 µA

or flash mode

I

DD(DTMF)

I

DD(stb)

operating supply current in DTMF
dialling mode

standby supply current VDD= 1.8 V

tone ON − 0.6 0.9 mA
one OFF −−200 µA

− 1.4 4.0 µA

oscillator OFF; note 1

Inputs

V

IL

V

IH

I

LI

LOW level input voltage 0 − 0.3V
HIGH level input voltage 0.7V

DD

− V

DD

DD

V
V

input leakage current pin CE −1 − +1 µA

Keyboard inputs

R

KON

R

KOFF

keyboard ON resistance −−2kΩ
keyboard OFF resistance 1 −−MΩ

1996 Nov 21 15

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Outputs

I

OL

LOW level output sink current pins M1,
M1, DP/FLO, CF and FLD

LOW level output sink current pin
PD/DTMF

I

OH

HIGH level output source current pins
M1, M1, DP/FLO, CF and M2

HIGH level output source current pin
PD/DTMF

HIGH level output source current pin

FLD
Tone output (see Fig.10)
V

HG(RMS)

DTMF output voltage levels for HIGH

group (RMS value)
V

LG(RMS)

DTMF output voltage levels for LOW

group (RMS value)
∆f frequency deviation −0.6 − +0.6 %
V

DC

 output impedance − 0.1 0.5 kΩ

Z

O

G

v

DC voltage level − 0.5V

voltage gain (pre-emphasis) of group 1.85 2.1 2.35 dB
THD total harmonic distortion T

Notes

1. Crystal connected between OSCI and OSCO; CE at VSS and all other pins open-circuit.

2. <10 mA dynamic current to set/reset PD/DTMF pin (mixed mode).

3. Flash inactive; output voltage = VSS.

4. Related to the level of the LOW group frequency component, according to CEPT recommendations.

VOL=VSS+ 0.5 V 0.7 −−mA

VOL=VSS+ 0.5 V;

−−1mA

note 2
VOH=VDD− 0.5 V −0.6 −−mA

V

OH=VDD

− 0.5 V;

−−−1mA

note 2
V

OH=VDD

− 0.5 V;

−−60 − nA

note 3

VDD= 2.5 to 6 V 158 192 205 mV

VDD= 2.5 to 6 V 125 150 160 mV

− V

DD

=25°C; note 4 −−25 − dB

amb

handbook, halfpage

V

DD

PCD3310X

TONE

V

SS

Fig.10 Tone output test circuit.

1996 Nov 21 16

1 µF

50 pF 10 kΩ

MGE501

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

12 TIMING CHARACTERISTICS

When any key is activated a square wave (330 Hz) is generated and appears at the CF output to serve as an acoustic
feed-back for the user.

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

DTMF dialling

, t

t

t

p

, t

t

t

p

Pulse dialling (PCD3310)

f

dp

t

id

t

b

t

m

Pulse dialling (PCD3310A)

f

dp

t

id

t

b

t

m

General

t

FL

t

flh

t

h

t

on

t

e

t

rd

transmission and pause times (manual dialling) 68 −−ms
transmission and pause times (redialling) 68 70 72 ms

dialling pulse frequency 9.8 10 10.4 Hz
inter-digit pause 828 840 844 ms
break time 66 67 68 ms
make time 32 33 34 ms

dialling pulse frequency 9.8 10 10.4 Hz
inter-digit pause 828 840 844 ms
break time 59 60 61 ms
make time 39 40 41 ms

flash pulse duration 98 100 102 ms
flash hold-over time 31 33 34 ms
hold-over time (muting on M1) 78 80 81 ms
clock start-up time − 4 − ms
debounce time − 12 − ms
reset delay time − 160 − ms

1996 Nov 21 17

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

handbook, full pagewidth

CE

KEYBOARD

ENTRY

M1

M2

DP/FLO

DTMF

The dashed line signifies floating.

t

rd

t

e

34

t

id

CONVERSATION

MODE

(await dialling tone)

(no effect)

>t

>t

e

e

T

2

1

t

b

n × t

m

dp

DIALLING MODE

t

t

m

3

t

id

T

n × t

4

t

m

dp

23

1

t

b

CONVERSATION

Fig.11 Timing diagram for pulse dialling (PD/DTMF = VSS).

t

m

MODE

t

rd

STATIC

STANDBY

MODE

MGE497

handbook, full pagewidth

CE

KEYBOARD

ENTRY

M1

M2

DTMF

DP/FLO

The dashed line signifies floating.



t

rd

<t

<t

t

p

12

t

e

ttt

>t

p

(no effect)

t

3F

t

e

t

h

>t

t

t

t

e

e

t

e

t

h

Fig.12 Timing diagram for DTMF dialling (PD/DTMF = VDD).

t

flh

t

fl

MGE498

1996 Nov 21 18

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

handbook, full pagewidth

The dashed line signifies floating.

CE

KEYBOARD

ENTRY

M1

DIAL TONE

DTMF

00

t

e

t

h

t

t

e

e

R

t

e

telephone number

MGE500

Fig.13 Timing diagram showing REDIAL where PABX access digits are the first keyboard entries in DTMF dialling

mode.

handbook, full pagewidth

KEYBOARD

ENTRY

2

t

e

∗

t

e

t

e

2

t

e

t

e

DP/FLO

t

id

DTMF

M1

M2

PD/DTMF

The dashed line signifies floating.

Fig.14 .Timing diagram for mixed mode (PD/DTMF open-circuit).

1996 Nov 21 19

t

h

DTMF diallingpulse dialling

MGE502

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

13 APPLICATION INFORMATION

(3)

ok, full pagewidth

≤450

l

Z

C
9

8

kΩ

470

R3

D

#

0

∗

ROW 4

7

kΩ

R8

1%

kΩ

3.92

>

R

FL
P

ROW 5

6

BF423

1%

R6

110

R9

20 Ω

390 Ω

PCD3310P

BC547

J2

kΩ

1%

470

R11

DP/

kΩ

(1)

130 Ω

FLO

16

C12

R12

220 

820

MGE503

2

select pin

M1

17

470 kΩ

BST76

PD/DTMF

470 kΩ 10 MΩ

BC547 BZX79/C10

3.9 Ω

.

SS

4

SS

V

Fig.15 Application diagram of the full electronic basic telephone set.

nF

bal

Z

Ω

A

B

123

45678

ROW 1

ROW 2

2.2 nF

R7

10

68

1%

9

BC557

100

2.2

µF

100

µF

4.7

100 pF

kΩ

1%

R2

130

ROW 3

470

CC

to V

nF

C5

nF

(10 V)

(10 V)

kΩ

COL 4

COL 3

COL 2

COL 1

12

13

3

TONE

10 kΩ

100 nF

DTMF

13

TEA1060/61

11

150 nF

12

14 11 10

CC

15

AGC V

17 16

SLPE

3218

14

19 20 1

18

DD

V

CE

redial

capacitor

R14

R5

10 V

to V

R13

C14

SS

10 µF 

10 V

(4)

≥450

l

Z

2.2 µF

S1

C13

R4

1%

CC

to V

10 nF

10 nF

2.2 µF

C7

1 nF

kΩ

C4

100

R1

620

10

nF

BAS11

BAV10

(2)



kΩ

3.6 
9

1%

8

67

10 pF

5
4

Ω

1%

1

BZX79/C12

4 ×

BAS11

1996 Nov 21 20

a/b

line

−U

b/a

(2) The value of resistor R14 is determined by the required level at LN and the DTMF gain of the TEA1060 and TEA1061.

(3) Symmetrical low-impedance inputs for dynamic and magnetic microphones (TEA1060).

(1) Automatic line compensation obtained by connecting R6 to V

(4) Asymmetrical high-impedance inputs for electret microphones (TEA1061).

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

14 PACKAGE OUTLINES

DIP20: plastic dual in-line package; 20 leads (300 mil)

D

seating plane

L

Z

20

pin 1 index

e

b

SOT146-1

M

E

A

2

A

A

1

w M

b

1

11

E

c

(e )

1

M

H

1

0 5 10 mm

scale

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

A

A 

A 

UNIT

inches

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

max.

mm

OUTLINE
VERSION

SOT146-1

1 2

min.

max.

1.73

1.30

0.068

0.051

IEC JEDEC EIAJ

  SC603

b

b

1

0.53

0.38

0.021

0.015

REFERENCES

0.36

0.23

0.014

0.009

cD E e M

(1) (1)

26.92

26.54

1.060

1.045

1996 Nov 21 21

6.40

6.22

0.25

0.24

10

(1)

M

e

L

1

3.60

8.25

3.05

7.80

0.14

0.32

0.12

0.31

EUROPEAN

PROJECTION

H

E

10.0

0.2542.54 7.62

8.3

0.39

0.010.10 0.30

0.33

ISSUE DATE

92-11-17
95-05-24

Z

w

max.

2.04.2 0.51 3.2

0.0780.17 0.020 0.13

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

SO28: plastic small outline package; 28 leads; body width 7.5 mm

D

c

y

Z

28

pin 1 index

1

e

15

14

w M

b

p

SOT136-1

E

H

E

Q

A

2

A

1

L

p

L

detail X

(A )

A

X

v M

A

A

3

θ

0 5 10 mm

scale

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

mm

OUTLINE

VERSION

SOT136-1

A

max.

2.65

0.10

A

0.30

0.10

0.012

0.004

A2A

1

2.45

2.25

0.096

0.089

IEC JEDEC EIAJ

075E06 MS-013AE

0.25

0.01

b

3

p

0.49

0.32

0.36

0.23

0.019

0.013

0.014

0.009

UNIT

inches

Note

1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.

(1)E(1) (1)

cD

18.1

7.6

7.4

0.30

0.29

1.27

0.050

17.7

0.71

0.69

REFERENCES

1996 Nov 21 22

eHELLpQ

10.65

10.00

0.42

0.39

1.4

0.055

1.1

0.4

0.043

0.016

1.1

1.0

0.043

0.039

PROJECTION

0.25

0.25 0.1

0.01

0.01

EUROPEAN

ywv θ

Z

0.9

0.4

0.035

0.004

0.016

ISSUE DATE

91-08-13

95-01-24

o

8

o

0

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

15 SOLDERING

15.1 Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

“IC Package Databook”

(order code 9398 652 90011).

15.2 DIP

15.2.1 S

OLDERING BY DIPPING OR BY WA VE

The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.

The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T

stg max

). If the
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.

15.2.2 R

EPAIRING SOLDERED JOINTS

Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300 °C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400 °C, contact may be up to 5 seconds.

15.3 SO

15.3.1 REFLOW SOLDERING
Reflow soldering techniques are suitable for all SO

packages.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.

Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.

15.3.2 W

AVE SOLDERING

Wave soldering techniques can be used for all SO
packages if the following conditions are observed:

• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.

• The longitudinal axis of the package footprint must be
parallel to the solder flow.

• The package footprint must incorporate solder thieves at
the downstream end.

During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.

Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.

A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.

15.3.3 R

EPAIRING SOLDERED JOINTS

Fix the component by first soldering two diagonally­opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

1996 Nov 21 23

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

16 DEFINITIONS

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

1996 Nov 21 24

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

NOTES

1996 Nov 21 25

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

NOTES

1996 Nov 21 26

Philips Semiconductors Product specification

Pulse and DTMF diallers with redial PCD3310; PCD3310A

NOTES

1996 Nov 21 27

Philips Semiconductors – a worldwide company

Argentina: see South America
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,

Tel. [phone], Fax. [phone]
Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213,

Tel. [phone], Fax. [phone]
Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,

220050 MINSK, Tel. [phone], Fax. [phone]

Belgium: see The Netherlands
Brazil: seeSouth America
Bulgaria: Philips Bulgaria Ltd., Energoproject, 15thfloor,

51 James Bourchier Blvd., 1407 SOFIA,
Tel. [phone], Fax. [phone]

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,
Tel. [phone]

China/Hong Kong: 501 Hong Kong Industrial Technology Centre,
72 Tat Chee Avenue, Kowloon Tong, HONG KONG,
Tel. [phone], Fax. [phone]

Colombia: see South America
Czech Republic: see Austria
Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,

Tel. [phone], Fax. [phone]
Finland: Sinikalliontie 3, FIN-02630 ESPOO,

Tel. [phone], Fax. [phone]/xxx
France: 4 Rue du Port-aux-Vins, BP317, 92156 SURESNES Cedex,

Tel. [phone], Fax. [phone]
Germany: Hammerbrookstraße 69, D-20097 HAMBURG,

Tel. [phone], Fax. [phone]
Greece: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS,

Tel. [phone], Fax. [phone]

Hungary: seeAustria
India: Philips INDIA Ltd, Shivsagar Estate, A Block, Dr. Annie Besant Rd.

Worli, MUMBAI 400 018, Tel. [phone], Fax. [phone]

Indonesia: see Singapore
Ireland: Newstead, Clonskeagh, DUBLIN 14,

Tel. [phone], Fax. [phone]
Israel: RAPAC Electronics, 7 Kehilat Saloniki St, TEL AVIV 61180,

Tel. [phone], Fax. [phone]
Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,

20124 MILANO, Tel. [phone], Fax. [phone]
Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,

Tel. [phone], Fax. [phone]
Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,

Tel. [phone], Fax. [phone]
Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,

Tel. [phone], Fax. [phone]
Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,

Tel. [phone]

Middle East: see Italy

Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,

Tel. [phone], Fax. [phone]
New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. [phone], Fax. [phone]
Norway: Box 1, Manglerud 0612, OSLO,

Tel. [phone], Fax. [phone]
Philippines: Philips Semiconductors Philippines Inc.,

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. [phone], Fax. [phone]

Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA,
Tel. [phone], Fax. [phone]

Portugal: see Spain
Romania: see Italy
Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,

Tel. [phone], Fax. [phone]
Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,

Tel. [phone], Fax. [phone]

Slovakia: see Austria
Slovenia: see Italy
South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,

2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000,
Tel. [phone], Fax. [phone]

South America: Rua do Rocio 220, 5th floor, Suite 51,
04552-903 São Paulo, SÃO PAULO - SP, Brazil,
Tel. [phone], Fax. [phone]

Spain: Balmes 22, 08007 BARCELONA,
Tel. [phone], Fax. [phone]

Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,
Tel. [phone], Fax. [phone]

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,
Tel. [phone], Fax. [phone]

Taiwan: PHILIPS TAIWAN Ltd., 23-30F, 66,
Chung Hsiao West Road, Sec. 1, P.O. Box 22978,
TAIPEI 100, Tel. [phone], Fax. [phone]

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,
209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,
Tel. [phone], Fax. [phone]

Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,
Tel. [phone], Fax. [phone]

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,
252042 KIEV, Tel. [phone], Fax. [phone]

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,
MIDDLESEX UB3 5BX, Tel. [phone], Fax. [phone]

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. [phone]

Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

Tel. [phone], Fax.[phone]

For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,
Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. [phone]

© Philips Electronics N.V. 1996 SCA52
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.

Internet: http://www.semiconductors.philips.com

Printed in The Netherlands 417021/1200/03/pp28 Date of release: 1996 Nov 21 Document order number: 9397750 01075